NVIDIA's G-Sync ULMB 2 aims to minimize motion blur in games

engadget.com:

NVIDIA has revealed G-Sync Ultra Low Motion Blur (ULMB) 2, the second generation of tech it designed to minimize motion blur in competitive games. Compared with ULMB, which it released in 2015, the company says the latest version offers nearly twice as much brightness, along with almost no crosstalk — the strobing or double-image effect that sometimes appears when blur reduction features are enabled.

Motion clarity is largely determined by the monitor's pixel response time. To improve matters, NVIDIA is using "full refresh rate backlight strobing," which builds on the backlight strobing technique from the original ULMB. Although the previous version of the tech improved motion clarity for many, it needed to switch off the monitor's backlight 75 percent of the time. This reduced the brightness of the screen.

With ULMB 2, NVIDIA is able to match the display's refresh rate when it turns the backlight on and off. The aim is to only turn the backlight on when pixels are at the correct color value for each frame. This mitigates crosstalk, as you shouldn't see pixels when they're transitioning to the accurate color.

This approach wasn't really possible with the slower pixel refresh rates of older monitors. ULMB 2 is able to run at the full refresh rate of current displays. On a 360Hz display, each backlight strobe happens every 2.7 milliseconds — a rate that's imperceptible to the human eye.

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What this all boils down to is NVIDIA being able to offer more brightness and an effective